Weather data for Hancock NH. Forecast values begin September 3, 2011

Key Dates for European Red Mites

Estimated hatch date of overwintered European red mite (ERM) eggs
and decline in efficacy of suppression by prebloom oil is
Friday, May 6

Optimum monitoring period for 1st generation ERM:
Wednesday, May 25 (Petal Fall)
to Sunday, May 29 (early adults ready to lay eggs for 2nd generation)

Optimum monitoring period for 2nd generation ERM:
Tuesday, June 7 (nymphs hatched)
to Tuesday, June 14 (egglaying starts for 3rd generation)

Optimum monitoring period for 3rd ERM generation is:
Monday, June 27 (nymphs hatched)
to Monday, July 4 (egglaying starts for 4th generation)